9 Control, metering, monitoring, regulating apparatus and instruments, namely, automatic control valves for regulating the flow of gases and liquids, level switches and level indicators for monitoring and controlling liquids in tanks and vessels, liquid level sensors, liquid level transmitters, electrodes, conductivity meters, conductivity sensors, conductivity controllers, capacitance level controllers, condensate monitors; sight glasses being sight flow indicators; sight glasses being level sensors for liquids with in built check valves; valves operated automatically by electric or electronic control by solenoid or by temperature or other changes in physical conditions, namely, automatic valves, solenoid valves; gauges, namely, level gauges, temperature gauges, pressure gauges; apparatus, equipment and instruments for remote control, payment, monitoring, communication, measuring and reporting relating to the efficiency, power and energy consumption of industrial systems, industrial equipment, steam systems, components of steam systems, steam traps, valves and filters, namely, electronic fluid level controllers and transmitters, steam trap testing devices, pressure transmitters, temperature transmitters, transmitters of electronic signals, electric switches, temperature switches; apparatus, equipment and instruments for remotely controlling, metering, monitoring, communicating and measuring and reporting relating to the efficiency, performance and energy consumption of strainers, pumps, separators, air compressors, lubricators, regulators, gauges, boilers, boiler systems, heat exchangers, heating installations, steam heaters, and steam generating apparatus, namely, electronic fluid level controllers and transmitters, steam trap testing devices, pressure transmitters, temperature transmitters, transmitters of electronic signals, electric switches, temperature switches; downloadable computer software for remotely controlling, metering, monitoring, communicating with and measuring and reporting the efficiency, performance and energy consumption of industrial systems, industrial apparatus, steam systems, components of steam systems, steam traps, valves, filters, strainers, pumps, separators, air compressors, lubricators, regulators, gauges, boilers, boiler systems, heat exchangers, heating installations, steam heaters, and steam producing apparatus; wireless communication devices for voice, data or image transmission; programmable electronic controllers for liquid level monitors, steam boilers, steam generators, hot water generators; remote controls for liquid level monitors, steam trap testing, steam boilers, steam generators, hot water generators; multiple control units for regulating signal transmission; electrical installations for the remote control of bleeding valves and of control elements for thermic installations; measuring, signaling and monitoring equipment, in particular for liquids, gaseous environments, liquid cleansers, condensation purgers, flow bleeders, bleeders for pressure, conductibility, level, temperature and for other physical measures, namely, level switches and level indicators for monitoring and controlling liquids in tanks and vessels, liquid level sensors, liquid level transmitters, electrodes, conductivity meters, conductivity sensors, conductivity controllers, capacitance level controllers, condensate monitors; parts of monitoring, signaling and measuring equipment, namely, alarms, electric selector switches and electric amplifier selector switches; detectors, particularly for pressure, conductibility, level, temperature and other physical measures, namely, pressure sensors, temperature sensors, liquid level sensors; water level indicators; data processing equipment and accessories, namely, memories for data processing equipment; computer display screens, computers and document printers, computer keyboards; computer programs recorded on data media for testing and monitoring efficiency, performance and energy consumption of strainers, pumps, separators, air compressors, lubricators, regulators, gauges, boilers, boiler systems, heat exchangers, heating installations, steam heaters, and steam generating apparatus; parts, fittings and accessories for all of the aforesaid goods